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A new system for photon induced fluorescence spectroscopy applied to the study of doubly excited states of helium

Coreno, M; de Simone, M; Danailov, M; Richter, R; Kivimäki, Antti LU ; Zitnik, M and Prince, K C (2005) In Journal of Electron Spectroscopy and Related Phenomena 144-147. p.39-42
Abstract
A new system for photon induced fluorescence spectroscopy (PIFS) at the gas phase photoemission beamline (Elettra, Trieste) is described. It consists of a novel non-dispersive detector for VUV photons and a spectrometer for UV/visible light with cooled CCD detector. To illustrate the performance of the apparatus, the fluorescence decay of the doubly excited states of helium below the N = 2 ionization threshold has been studied. Fluorescence emission from both singlet and triplet states has been observed, and in particular weak visible emission resulting from decay of 7(3D) and 8(3D) triplet states confirmed the recently published assignment of these states. This illustrates how PIFS can be used to provide a direct and unambiguous... (More)
A new system for photon induced fluorescence spectroscopy (PIFS) at the gas phase photoemission beamline (Elettra, Trieste) is described. It consists of a novel non-dispersive detector for VUV photons and a spectrometer for UV/visible light with cooled CCD detector. To illustrate the performance of the apparatus, the fluorescence decay of the doubly excited states of helium below the N = 2 ionization threshold has been studied. Fluorescence emission from both singlet and triplet states has been observed, and in particular weak visible emission resulting from decay of 7(3D) and 8(3D) triplet states confirmed the recently published assignment of these states. This illustrates how PIFS can be used to provide a direct and unambiguous verification of the assignments of states observed in photoabsorption. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
fluorescence detection, fluorescence decay, He, double excitations, techniques
in
Journal of Electron Spectroscopy and Related Phenomena
volume
144-147
pages
39 - 42
publisher
Elsevier
external identifiers
  • wos:000229657100010
  • scopus:17444379000
ISSN
0368-2048
DOI
10.1016/j.elspec.2005.01.272
language
English
LU publication?
yes
id
58ceb48a-e02d-436b-abb2-fcd1ffd2b4fd (old id 237400)
date added to LUP
2007-08-02 13:54:16
date last changed
2017-01-22 04:01:57
@article{58ceb48a-e02d-436b-abb2-fcd1ffd2b4fd,
  abstract     = {A new system for photon induced fluorescence spectroscopy (PIFS) at the gas phase photoemission beamline (Elettra, Trieste) is described. It consists of a novel non-dispersive detector for VUV photons and a spectrometer for UV/visible light with cooled CCD detector. To illustrate the performance of the apparatus, the fluorescence decay of the doubly excited states of helium below the N = 2 ionization threshold has been studied. Fluorescence emission from both singlet and triplet states has been observed, and in particular weak visible emission resulting from decay of 7(3D) and 8(3D) triplet states confirmed the recently published assignment of these states. This illustrates how PIFS can be used to provide a direct and unambiguous verification of the assignments of states observed in photoabsorption.},
  author       = {Coreno, M and de Simone, M and Danailov, M and Richter, R and Kivimäki, Antti and Zitnik, M and Prince, K C},
  issn         = {0368-2048},
  keyword      = {fluorescence detection,fluorescence decay,He,double excitations,techniques},
  language     = {eng},
  pages        = {39--42},
  publisher    = {Elsevier},
  series       = {Journal of Electron Spectroscopy and Related Phenomena},
  title        = {A new system for photon induced fluorescence spectroscopy applied to the study of doubly excited states of helium},
  url          = {http://dx.doi.org/10.1016/j.elspec.2005.01.272},
  volume       = {144-147},
  year         = {2005},
}